Though this may be old news to others I have tested completely and am glad to inform all of you that all functions work when using a SDHC 8gb micro sd card with your blackberry. The phone recognizes the size and is able to store any information on it, format it, and read all media or other applications stored on it. Even better news reports of 16gb SDHC micro sd cards have been discovered and products should be expected by the end of 2008.